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14 crowdsourcinggi
1.
CROWDSOURCING AND GI
JAVIER MORALES
2.
AGENDA CROWDSOURCING AND SPATIAL
DATA INFRASTRUCTURES Background Crowdsourcing Principles Examples Conclusions © Manuel Ramos © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 2
3.
BACKGROUND THE ROLE OF
GI Geographic information (GI) was for generations produced and consumed by professionals Societal processes land transfer, planning and development, risk management … that affect organisations and individuals. Trend to develop mechanisms to bring GI closer to non-professional users © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 3
4.
BACKGROUND MODERN TOOLS
Web 2.0 high interactivity, sharing and collaboration, Interoperability, and real-time user-generated content Web 2.0 apps social networking, blogging, wikis, video sharing, and Mashups © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 4
5.
BACKGROUND WEB 2.0
The users’ role has changed from looking for and retrieving content to active participation © www.techscreens.com everyone contributes to the common knowledge of the group they interact with Wikipedia, YouTube, Flickr, Wikimedia © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 5
6.
CROWDSOURCING WHY?
Organisations today have to operate in information-rich environments They can no longer afford to rely entirely on their own ideas They cannot bet their success to a single product to the market Traditional development which largely focused on intra-organisational skills, closed off from outside ideas and technologies is becoming obsolete © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 6
7.
CROWD-WHAT?
Crowdsourcing is the act of taking a job traditionally performed by a designated agent (usually an employee) and outsourcing it to an undefined, generally large group of people in the form of an open call. Jeff Howe © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 7
8.
CROW-WHAT?
The crowdsourcing approach a recognised entity posts a problem online a large number of individuals reacts they provide a small part of the solution to the problem solutions offered are exhaustive and not disjoint This approach is popular because web-based social technology makes it feasible & affordable to collect data using groups of individuals such data is often more accurate indicator of current conditions in the real world than what can be obtained from data stored in databases © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 8
9.
CROWDSOURCING PRINCIPLES 1.
Formulate the problem properly Scope & purpose 2. State deliverables concretely (quality) let the crowd know exactly what is expected from them leave space for their creativity 3. Connect with the right crowd diversity (the question is answered from multiple points of view) scientists or specialists and a significant number of hobbyists with knowledge in the problem domain 4. Deploy the appropriate crowd management scheme moderate discussion boards post provocative challenges & publish milestones © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 9
10.
EXAMPLES
Ushahidi GeoNames Geonode Google MapMaker OpenStreetMaps Aim at providing open data through the Creative Commons Attribution – ShareAlike license data can be used freely and if you alter or build upon it, you need to share those alterations back to the community © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 10
11.
OPEN DATA Data is
considered to be open if it is and publish online, updated as often as possible, provided in a way that allows for its legal use for any purpose, and that allows easy processing with any arbitrary software program © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 11
12.
OPENSTREETMAP
The OpenStreetMap project is a crowdsourced geospatial data repository, with a global cast of volunteers. With the mission to create a free editable dataset of the world It has been very successful especially In producing data fro places where it was very scarce (rural & peri-urban areas) In keeping up-to-date datasets of rapidly evolving urban areas © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 12
13.
OPENSTREETMAP A YEAR OF
EDITS © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 13
14.
OPENSTREETMAP PROJECT HAITI -
2010 © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 14
15.
OPENSTREETMAP
© Department of Geo-information Processing (GIP) – 27-Oct-2011 – 15
16.
SPATIAL DATASETS CROWDSOURCING IMPACT
Chia, Colombia Maps © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 16
17.
OPENSTREETMAP COMPARISON
Enschede © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 17
18.
OPENSTREETMAP COMPARISON
Guatemala City © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 18
19.
SPATIAL DATASETS CROWDSOURCING IMPACT
Lahore, Pakistan in Lahore, Pakistan in Google Maps Google Maps (before MapMaker) (after MapMaker) © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 19
20.
SPATIAL DATASETS CROWDSOURCING IMPACT
Bolivia © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 20
21.
USHAHIDI HISTORY
© Department of Geo-information Processing (GIP) – 27-Oct-2011 – 21
22.
USHAHIDI WORKING APPROACH
© Department of Geo-information Processing (GIP) – 27-Oct-2011 – 22
23.
USHAHIDI DATA INPUTS
© Department of Geo-information Processing (GIP) – 27-Oct-2011 – 23
24.
USHAHIDI EXPLOITATION
Disaster Response © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 24
25.
USHAHIDI EXAMPLES
http://ushahidi.internewskenya.org/ © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 25
26.
USHAHIDI EXAMPLES
http://haiti.ushahidi.com/ © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 26
27.
CONCLUSIONS CROWDS & SDI
Work on something relevant (or at least has the promise of being useful relatively soon) Put the users at the center View users as important contributors Give them responsibility Enable ratings Derive metadata from usage Make customization as easy as possible Enable mashups Unlock the visualizations Index your data and become searchable © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 27
28.
CHALLENGES RESEARCH ISSUES
Automatic validation an filtering of data inputs Indirect geo-tagging (mining of social networks) Automatic aggregation & summarizing of similar data entries © Community FixIt © Department of Geo-information Processing (GIP) – 27-Oct-2011 – 28
29.
© Department of
Geo-information Processing (GIP) – 27-Oct-2011 – 29
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